A gate station stability calculation method and system based on BIM platform

Abstract

The present invention provides a method and system for calculating the stability of a sluice station based on a BIM platform. The method includes the following steps: displaying the three-dimensional design model data of the sluice station to be calculated on the BIM platform; performing interactive operations based on the three-dimensional design model to set the sluice station stability analysis calculation unit and its parameters; setting the working condition combination and its parameters for the calculation unit; setting the corresponding load distribution for each working condition combination; encapsulating the sluice station calculation unit and its parameters, the working condition combination and its parameters, and the load distribution through three-dimensional features and saving them on the BIM platform for persistent storage and visual display; a solver obtains the analysis and calculation results by reading the calculation features saved on the BIM platform, and provides an evaluation of whether the specification allowable value meets the requirements. The present invention achieves deep integration of analysis and calculation with the BIM platform, eliminating the disadvantages of the disconnection between traditional design and calculation, and giving full play to the collaborative advantages of integrated BIM design and calculation of sluice gates.

Description

Technical Field

[0001] The present invention belongs to the technical field of sluice safety data management, and in particular relates to a method and system for calculating sluice station stability based on a BIM platform. Background Art

[0002] Sluice gates are typical hydraulic engineering structures, widely used in canal and river projects to regulate water levels and control flow. Sluice gate design is a complex and systematic undertaking, requiring comprehensive consideration of multiple factors, including topography, geology, and water flow. Sluice gate structures vary in layout, and numerous design factors influence their design. Sluice chamber stability analysis, in particular, is a crucial basis for determining project layout and core parameters, requiring a highly comprehensive and practical approach.

[0003] With the rapid development of BIM technology (Building Information Modeling), the water conservancy and hydropower industry has gradually adopted three-dimensional design methods. Compared with traditional two-dimensional design, BIM technology has advantages such as strong interactivity, intuitive visualization, and real-time collaboration, and has become a mainstream trend in sluice project design. However, existing BIM technology still has limitations in practical application and fails to fully cover all operational links in the water conservancy and hydropower industry.

[0004] Especially in the analysis and calculation of sluice stability, there are the following defects and deficiencies:

[0005] Outdated calculation methods: Currently, the stability analysis of main structures such as lock chambers and pump chambers still mainly relies on traditional manual calculation methods, which leads to cumbersome parameter settings and low efficiency.

[0006] The calculation process is fragmented: due to the lack of integration with the BIM platform, the calculation process cannot directly rely on 3D design data, data management is not unified, and the calculation results are separated from the 3D model, resulting in unintuitive results.

[0007] Large amount of repetitive work: When the plan is modified or the parameters are adjusted, recalculation and rechecking are required, which makes it difficult to iterate efficiently. The large amount of repetitive work affects the efficiency of project design.

[0008] Limitations of auxiliary software: Although commercial software such as hydraulic calculation program sets and hydraulic stability calculation software exist on the market, these tools are still mainly based on two-dimensional calculations, lacking graphical interaction and data linkage with the BIM platform. The design and calculation processes are disconnected, and when the plan changes, it is often necessary to repeat the calculation or fail to review the calculation results in a timely manner.

[0009] Unintuitive results: Calculation results using traditional methods are usually presented in text or report form, lacking intuitive association with the BIM model and making it difficult to support design optimization and decision-making.

[0010] In summary, the existing technology in the analysis and calculation of sluice stability has problems such as fragmented calculation process, low data integration, large amount of repetitive work, and non-intuitive results. It is difficult to fully utilize the advantages of the BIM platform and cannot meet the actual needs of full-process three-dimensional design collaboration and efficient analysis. Summary of the Invention

[0011] The purpose of the present invention is to address the deficiencies in the above-mentioned background technology, and to provide a method and system for calculating the stability of a sluice station based on a BIM platform. Relying on the three-dimensional design data of the BIM platform, the stability calculation of the designated calculation unit of the sluice station is integrated and completed, and the full process automation of parameter association, working condition combination setting, load distribution, calculation solution and result packaging is realized; through data linkage with the BIM platform, the calculation results are encapsulated into the three-dimensional model as three-dimensional feature data, and the results are intuitively visible; it supports rapid iteration of working condition combination, load distribution and parameter setting, improves the efficiency of scheme adjustment and review, and reduces duplication of work; it realizes deep integration with the BIM platform, and gives full play to the integrated collaborative advantages of BIM technology in the analysis and calculation of sluice stability.

[0012] The technical solution adopted by the present invention is: a method for calculating the stability of a gate station based on a BIM platform, comprising the following steps:

[0013] Display the 3D design data of the gate station to be calculated on the BIM platform;

[0014] Determining the calculation unit of the gate station to be calculated and its parameters based on the displayed three-dimensional design data of the gate station to be calculated;

[0015] Set the working condition combination and its parameters for the unit to be calculated;

[0016] Set the corresponding load distribution for each working condition combination;

[0017] The gate station calculation unit and its parameters, working condition combination and its parameters, and load distribution parameters are stored in the BIM platform using 3D feature packaging, and displayed in 3D visualization in the BIM view area;

[0018] The solver calculates all load distributions under specified working conditions using the characteristic data to be calculated stored in the BIM platform, including anti-slip, anti-floating and base stress unevenness coefficients, and saves the calculation results and process to the BIM platform.

[0019] According to external instructions, the three-dimensional feature data saved in the BIM platform is imported into the set template and the calculation report is output.

[0020] In the above technical solution, the parameters of the gate station calculation unit include the sluice level, base reference plane, and base parameters; the base parameters include the base reference elevation, base length in the downstream direction, base width in the direction perpendicular to the water flow, foundation type, and its corresponding foundation parameters.

[0021] In the above technical solution, the parameters of the working condition combination include: working condition name, working condition stress condition, combination condition and characteristic water level.

[0022] In the above technical solution, the load distribution includes: deadweight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, frost heave force of soil, seismic load and other loads; each working condition combination corresponds to several of the above load distributions.

[0023] In the above technical solution, the process of setting any load distribution for any working condition includes: picking up corresponding points, lines and / or surfaces as the selected area of ​​load distribution through the three-dimensional design data of the gate station calculation unit to be calculated displayed in the BIM platform, and writing the parameters corresponding to the load distribution through external instructions.

[0024] In the above technical solution, the solver calculates the anti-slip, anti-floating and base stress unevenness coefficients based on the sluice design specifications; the solver generates a comparison result of the calculation results of the anti-slip, anti-floating and base stress unevenness coefficients with the corresponding agreed allowable values ​​in the sluice design specifications, evaluates whether the specifications are met, and encapsulates it as a three-dimensional feature.

[0025] In the above technical solution, there is a temporal sequence between different working condition combinations. Before load distribution is performed on any working condition combination, the preceding working condition combination of the working condition combination is first traversed to identify whether there is a transferable load. If so, it is used as the transfer load of the working condition combination; the anti-slip, anti-floating and base stress unevenness coefficients are calculated based on the direct load distribution and the transferred load distribution.

[0026] The present invention also provides a gate station stability calculation system based on a BIM platform, which is used to implement the gate station stability calculation method based on a BIM platform described in the above technical solution. The system includes:

[0027] The BIM platform is used to display the three-dimensional design data of the gate station to be calculated, and provides the operation interface of each functional module and a hierarchical structure tree directory. The hierarchical structure tree directory is used to display the name of the calculation unit, working condition combination name and load distribution name of the created gate station;

[0028] Analysis and calculation modules, including:

[0029] A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions and set the parameters of the calculation unit; associate the parameters with the selected calculation unit and save them to the BIM platform; the name of the created calculation unit node is displayed as a first-level object in the structure tree hierarchical directory;

[0030] The working condition combination creation module is used to select the calculation unit name in the structure tree hierarchical directory based on external instructions, locate the specific calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected calculation unit and save them, and add the working condition combination node name to the next level of the calculation unit node in the structure tree hierarchical directory;

[0031] The load distribution creation module is used to select the load condition combination name in the structure tree hierarchy directory based on external instructions, locate the specific load condition, and set the load distribution parameters; the load distribution parameters are associated with the selected load condition and saved, and the load distribution node name is added to the next level of the structure tree hierarchy directory of the load condition combination node;

[0032] The feature encapsulation module is used to encapsulate the calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load parameters generated by the load creation module into three-dimensional features, persist them to the BIM platform, and interactively display them in the BIM platform view area;

[0033] The calculation output module is used to select the gate station calculation unit name or working condition name in the hierarchical directory based on instructions, locate the specific data object, and extract the saved data and import it into the set template for output;

[0034] The solver is used to select the gate station calculation unit or its specified working condition combination in the structure tree hierarchical directory based on instructions, calculate the anti-slip, anti-floating and base stress unevenness coefficients, and encapsulate the calculation results as three-dimensional feature data and save them to the BIM platform;

[0035] The structure of the BIM platform tree hierarchy directory structure includes:

[0036] First level: calculation unit name;

[0037] Second level: working condition combination name;

[0038] Level 3: Load distribution name.

[0039] In the above technical solution, the load distribution creation module includes self-weight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, soil frost heave force, seismic load and other load setting modules; the BIM platform displays the start buttons of all load calculation modules, and lights up the start button of the load setting module corresponding to the specified working condition combination under the gate station calculation unit to be calculated, to prompt that the start instruction of the load setting module can be received.

[0040] The present invention also provides a computer-readable storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, it implements the gate station stability calculation method based on the BIM platform as described in the above technical solution.

[0041] The beneficial effects of the present invention are as follows: the present invention displays the three-dimensional design data to be calculated through the BIM platform and performs parameter setting in combination with external instructions, which can effectively achieve the following advantages:

[0042] Automated calculation process: The system automatically reads and writes data such as calculation units, working condition combinations and load distribution, greatly reducing the complexity and error rate of manual calculations.

[0043] Strong data correlation: All data (calculation units, working conditions, load distribution, etc.) are combined with the 3D design data in the BIM platform, achieving efficient data correlation and integration, ensuring data integrity and accuracy.

[0044] Full lifecycle support: This approach not only covers calculations during the design phase but also provides rapid feedback for subsequent design modifications and optimizations, helping to improve engineering design efficiency.

[0045] Furthermore, the present invention provides accurate parameter definitions for the calculation units by setting detailed parameters of the calculation units, including the sluice level, base reference plane and base parameters (such as elevation, length in the downstream direction, width in the direction perpendicular to the water flow, etc.), which helps to establish a high-precision three-dimensional model. The detailed definition of the base parameters makes subsequent stability calculations more accurate, avoiding the assumption errors in traditional methods; it improves the standardization level of various parameters and ensures the consistency and reliability of calculations under different working conditions.

[0046] Furthermore, the setting of the working condition combination of the present invention includes the name, stress condition, combination condition and characteristic water level. By clearly setting these parameters, the load and working condition changes in various working environments can be simulated more realistically; the accurate setting of different working condition combinations helps to improve the calculation accuracy and reduce the errors caused by human factors; the working conditions can be quickly adjusted according to different design requirements, and different design schemes can be flexibly responded to.

[0047] Furthermore, the load distribution of the present invention includes various types of loads such as deadweight, water weight, hydrostatic pressure, uplift pressure, etc., and corresponds to different working conditions respectively. The method comprehensively considers various types of loads (such as wind pressure, ice pressure, seismic load, etc.) to ensure that all influencing factors are taken into account; each load distribution corresponds to a specific working condition, can more accurately reflect the actual situation, and avoid the risk of missing critical loads; the load distribution is automatically set, which improves calculation efficiency and reduces errors caused by manual intervention.

[0048] Furthermore, the present invention selects and sets parameters for the three-dimensional model data of the gate station to be calculated in the BIM platform, and visually selects the load distribution area, making the load setting more intuitive and convenient, reducing the operational difficulty of the calculator; the load distribution selection is performed quickly and accurately, reducing the manual intervention and errors in the traditional method, and improving the accuracy of the calculation results; the load distribution selection directly depends on the three-dimensional model data, ensuring the consistency of the load distribution with the design data.

[0049] Furthermore, the solver of the present invention calculates anti-slip, anti-floating and base stress unevenness coefficients based on the sluice design specifications, which can ensure that the calculation results comply with the engineering design specifications; the automated calculation process eliminates human factors and ensures the uniformity and reliability of the calculation results; by comparing the calculation results with the standard values, it helps to discover potential problems in the design and make timely optimization adjustments.

[0050] Furthermore, the timing processing and load transfer mechanism between different working condition combinations of the present invention enables the system to automatically identify the sequence relationship between the working condition combinations, ensure the reasonable transfer of loads, and avoid omissions or repeated calculations; through the load transfer mechanism, the effect of loads under complex working conditions can be more accurately reflected, and the accuracy of the calculation results can be improved; when the working condition combination is adjusted, the system can quickly adapt to the new working condition settings, reducing the repetitive workload in the calculation process.

[0051] Furthermore, the present invention provides a system for stability calculation based on the BIM platform. This system, through modular design, can coordinate the work of different modules to achieve a fully automated process from gate station calculation unit creation to calculation report output, thereby improving work efficiency. During the calculation process, data is linked to the BIM platform in real time to ensure data updates and synchronization, avoiding data inconsistencies. The system's modular structure facilitates subsequent functional expansion and maintenance, and can adapt to future changes in demand. Users only need to select through the operation hierarchy directory and rely on external instructions to complete parameter setting and calculation, which is simple to operate and reduces user operation complexity.

[0052] Furthermore, the present invention displays a start button and prompts the user to start a specific load module. The start button displayed on the BIM platform can automatically prompt the user which load modules can be started, thereby optimizing the user interaction experience; by directly enabling a specific load module, the user operation process is simplified and the possibility of misoperation is reduced; through the combination of button indication and module startup, the efficiency of load setting is ensured and unnecessary waiting time during operation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 Schematic diagram of the functional architecture of the present invention;

[0054] Figure 2 Schematic diagram of the solver algorithm flow of the present invention;

[0055] Figure 3 A schematic diagram of a command for creating a computing unit for starting a specific embodiment;

[0056] Figure 4 A schematic diagram of a calculation unit parameter writing window according to a specific embodiment;

[0057] Figure 5 A schematic diagram of a combined command for creating a working condition for starting a specific embodiment;

[0058] Figure 6 A schematic diagram of adding deadweight load to a specific embodiment;

[0059] Figure 7 Schematic diagram of adding hydrostatic pressure load for specific embodiments;

[0060] Figure 8 A schematic diagram of adding uplift pressure loads for a specific embodiment;

[0061] Figure 9 A schematic diagram of adding earth pressure load for a specific embodiment;

[0062] Figure 10 Schematic diagram of adding silt pressure load for a specific embodiment;

[0063] Figure 11 A schematic diagram of adding wave pressure loads to a specific embodiment;

[0064] Figure 12 Schematic diagram of adding arbitrary point loads for a specific embodiment;

[0065] Figure 13 Schematic diagram of adding arbitrary surface loads for a specific embodiment;

[0066] Figure 14 It is a schematic diagram of using the solver of a specific embodiment;

[0067] Figure 15 A schematic diagram of starting a calculation report output command window in a specific embodiment;

[0068] Figure 16 The output effect of the calculation book is shown in the specific embodiment. DETAILED DESCRIPTION

[0069] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not constitute a limitation to the present invention.

[0070] like Figure 1 As shown, the present invention provides a method for calculating the stability of a gate station based on a BIM platform, comprising the following steps:

[0071] Display the 3D design model data of the gate station to be calculated on the BIM platform;

[0072] Determine the calculation unit and its parameters based on the displayed three-dimensional design data of the gate station to be calculated;

[0073] Set the working condition combination and its parameters for the calculation unit;

[0074] Set the corresponding load distribution for each working condition combination;

[0075] The calculation unit parameters, set working condition combinations and their parameters and load distribution are saved in the BIM platform through 3D features;

[0076] The solver reads the three-dimensional feature data stored in the BIM platform and calculates all load distributions under the specified working conditions, calculates the anti-slip, anti-floating and base stress unevenness coefficients, and saves the calculation results and process to the BIM platform;

[0077] According to external instructions, the three-dimensional features of the gate station to be calculated saved in the BIM platform are called and the specified data is extracted and imported into the set template for output.

[0078] The present invention also provides a gate station stability calculation system based on a BIM platform, the system comprising:

[0079] The BIM platform is used to display the 3D design model data of the gate station to be calculated, and provides the operation interface of each functional module and a hierarchical directory of the model structure tree. The hierarchical directory of the model structure tree is used to display the name of the created calculation unit, the name of the working condition combination, and the name of the load;

[0080] Analysis and calculation modules, including:

[0081] A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions and set the calculation unit parameters; associate the parameters with the selected gate station calculation unit and save them on the BIM platform; the created gate station calculation unit node is displayed as a first-level object in the structure tree hierarchy directory; a working condition combination creation module is used to select the gate station calculation unit node in the structure tree hierarchy directory based on external instructions, locate the specific gate station calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected gate station calculation unit and save them, and add the working condition combination node to the next level of the calculation unit node in the structure tree hierarchy directory; the calculation unit refers to the components of the gate station and their combinations;

[0082] The load distribution creation module is used to select a load case combination node in the structure tree hierarchy based on external instructions, locate a specific calculation load case combination, and set direct load distribution parameters; the direct load distribution parameters are associated with the selected load case combination and saved, and the load distribution node is added to the next level of the load case combination node in the structure tree hierarchy;

[0083] The feature encapsulation module is used to encapsulate the gate station calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load distribution parameters generated by the load distribution creation module into three-dimensional features, and save them to the BIM platform for persistent storage and graphical distribution display;

[0084] The calculation output module is used to select the gate station calculation unit name or working condition combination name in the hierarchical directory based on instructions, locate the specific data object, extract the saved data, import it into the set template, and then output the calculation report;

[0085] The solver module is used to select the gate station calculation unit and its specified working condition combination in the hierarchical catalog based on instructions, calculate the anti-slip, anti-floating and base stress unevenness coefficient indicators, and encapsulate the calculation results as 3D feature data and save them to the BIM platform;

[0086] The structure of the BIM platform tree hierarchy directory structure includes:

[0087] First level: calculation unit name;

[0088] Second level: working condition combination name;

[0089] Level 3: Load distribution name.

[0090] The principle of the present invention is further explained below with reference to specific embodiments.

[0091] This embodiment performs sluice stability calculations based on the BIM platform. Users interact with the BIM platform interface, and the system performs the corresponding calculation steps in the background. Specific steps include the creation and parameter setting of calculation units, the setting of working condition combinations and load distribution, and the final calculation and output. Each module of the system automatically processes according to the operating instructions in the background to ensure that the calculation results are consistent with the BIM design data. Specifically, the following steps are included:

[0092] Step 1: Display the 3D design model data of the gate station to be calculated

[0093] User Action:

[0094] like Figure 3 As shown, the user logs in to the BIM platform and opens the gate station project to be calculated.

[0095] The BIM platform loads the 3D design data of the gate station and displays the complete 3D model of the gate station on the interface, including various components such as the gate chamber, gate piers, gate gates, gate fixed structures, etc.

[0096] Users can use the BIM platform's view operation tools to rotate, zoom, or pan the 3D view to view various parts of the design data.

[0097] The toolbar at the bottom of the BIM platform interface is equipped with startup shortcuts for each module. The left side of the BIM platform displays a pull-down model structure tree hierarchy directory, and the right side displays a model view area.

[0098] Backend system functions:

[0099] The BIM platform loads and displays 3D design model data and extracts 3D models based on preset file formats (such as 3dxml or CATPart).

[0100] The background renders the 3D model to ensure that the model display is consistent with the design data in the database and supports real-time updates.

[0101] Step 2: Determine the stability analysis calculation unit and its parameters

[0102] User Action:

[0103] In the BIM platform interface, the user uses the mouse to click on the three-dimensional design data of the gate station and select the gate station components to be calculated (such as the gate chamber, base, etc.) as the calculation unit.

[0104] like Figure 3 As shown in the figure, expand the "Sluice Station Analysis and Calculation" section in the toolbar at the bottom of the interface → click the "Create Calculation Unit" button → the Calculation Unit dialog box pops up. The user can continue to click other selected calculation units, and the Calculation Unit dialog box displays the detailed parameter settings page for that node.

[0105] like Figure 4 As shown, users can modify or enter calculation unit parameters as needed, such as sluice level, base reference plane, and base parameters. Parameters can be entered using text boxes or drop-down menus. The model scale is 1:1, with the x-axis of the coordinate system oriented downstream and the z-axis oriented in elevation. The base plane reference elevation is used for subsequent working condition water level calculations, while the length and width along the downstream direction are factored into the cross-sectional resistance distance calculation. Whether the foundation type is soil or rock determines the anti-sliding calculation model, and the relevant parameter settings should meet regulatory requirements.

[0106] Click OK in the dialog box to save the result. A calculation unit node is created in the model structure tree hierarchy, and the user exits. Double-clicking this node allows editing and updating, and supports copying and pasting.

[0107] Backend system functions:

[0108] The calculation unit creation module receives the calculation unit nodes and their parameters (such as sluice level, base reference plane, base parameters, etc.) set by the user in the background.

[0109] The system associates the input parameters with the calculation unit nodes based on the calculation unit information in the BIM model, and saves the information to the database in the background to ensure that the three-dimensional data is synchronized with its physical properties.

[0110] Step 3: Set the working condition combination and its parameters

[0111] User Action:

[0112] like Figure 5 As shown, the user selects a created computing unit in the hierarchical directory (for example, selects the "computing unit 2" node).

[0113] The user clicks the working condition combination creation button in the toolbar at the bottom of the interface to pop up the working condition combination setting page.

[0114] The user selects the appropriate working condition combination name (such as completion, normal water storage level, design flood level, verification flood level, maintenance, etc.), working condition stress condition (symmetrical or asymmetrical), combination condition (basic combination, special combination I, special combination II, etc.) and characteristic water level (upstream water level, downstream water level, design flood level, verification flood level, etc.) according to the actual working conditions, and enters the corresponding working condition combination parameters. Click OK to exit. The upstream and downstream water levels and the base plane reference elevation in the current calculation unit of the parent node jointly determine the upstream and downstream water depths. For some common loads, such as the deadweight of the structure, load transfer can be set, that is, the load scope in one working condition combination is also effective in another working condition to avoid repeated application of the same load. This feature is only applicable to loads that are not related to the water level, such as gravity or live loads.

[0115] If the user does not specify a calculation unit in the structure tree hierarchy, the user will exit the work condition setting page directly after completing the settings and clicking OK without saving the results. The present invention ensures a reasonable organization of the model structure tree through node context dependencies.

[0116] Double-click the calculation unit and its sub-directories to edit and update, and support copy and paste (including sub-node loads).

[0117] Backend system functions:

[0118] The working condition combination creation module receives parameters such as working condition name, force condition, combination condition, etc. input by the user.

[0119] The system generates working condition combination data based on the working condition combination parameters, and associates it with the created gate station calculation unit to ensure that the working condition combination data is consistent with the calculation unit.

[0120] The system saves the working condition combination and parameters in the database of the BIM platform and adds the working condition name to the next level of the hierarchical directory.

[0121] Step 4: Set direct load distribution

[0122] The load combination node is used to store load distribution information, and the load combination should meet the relevant requirements of the specification.

[0123] User Action:

[0124] The user selects a specific load condition combination (such as "load condition under design water level") in the hierarchical catalog. According to the selected load condition combination, the toolbar at the bottom of the interface will light up the load distribution setting start button corresponding to the load condition combination.

[0125] The user enters the load distribution creation page by clicking the selected load distribution setting start button.

[0126] Use the mouse to click on the selected area, i.e., the load distribution area (e.g., select the top area of ​​the lock chamber to set loads such as deadweight or water weight). Interactively pick the target geometry, which must be a solid. The name of the selected area entity will be displayed on the load distribution creation page based on the selected content.

[0127] On the load distribution creation page (i.e., the corresponding load setting dialog box), users enter specific load parameters, such as inertia force, through text boxes. If the user has specified a calculation unit and load case combination in the structure tree hierarchy, the system will create a load subnode under that load case and exit after the user clicks OK on the load distribution creation page. Otherwise, clicking OK will exit without saving.

[0128] This system has corresponding load distribution creation page dialog boxes based on different load distribution settings, which are used to prompt users and receive corresponding parameters of each load distribution input by users.

[0129] Specifically, if Figure 6 As shown in the figure, the process for setting the self-weight load distribution for a specific load case combination is as follows: Click the "Self-weight" button in the toolbar to display the Self-weight Load dialog box. Interactively select the target geometry, which must be a solid. The user sets the density in the Self-weight Load dialog box. Next, if seismic inertia forces need to be considered (optional), select the seismic effect checkbox and enter the representative value of the seismic acceleration, seismic effect reduction factor, dynamic distribution factor, etc. Seismic inertia forces will be applied using the pseudo-static method.

[0130] Specifically, if Figure 7 As shown in the figure, the process for setting the hydrostatic pressure load distribution for a specific load case combination is as follows: Click the "Hydrostatic Pressure" button in the toolbar to open the Hydrostatic Pressure Load dialog box. The user interactively selects the hydrostatic pressure range, which consists of two straight lines: the line of action (vertical) and the guide line (cross-flow). The user sets the water density and water level reference direction, such as upstream or downstream, in the corresponding dialog box.

[0131] Specifically, if Figure 8 As shown in Figure 2, the process for setting the uplift pressure load distribution for a specific load case combination is as follows: Click the "Uplift Pressure" button in the toolbar to display the Uplift Pressure dialog box. The user interactively selects the uplift pressure range, which consists of two straight lines: the line of action (within the flow direction) and the guide line (across the flow direction). The user then uses the corresponding dialog box to set the water density and whether there are drain holes or grout curtains. If so, the ratio from the drain hole centerline to the upstream end and the seepage pressure intensity coefficient α (generally 0.25) are set.

[0132] Specifically, if Figure 9 As shown in the figure, the process for setting the earth pressure load distribution for a specific load case combination is as follows: Click the "Earth Pressure" button in the toolbar to display the Earth Pressure dialog box. The user interactively selects the earth pressure range, which consists of two straight lines: the wall backline (vertical) and the wall bottomline (between the wall toe and heel). The user then uses the corresponding dialog box to select the earth pressure calculation model and set the backfill bulk density, as well as related parameters such as the internal friction angle, external friction angle, and backfill angle.

[0133] Specifically, if Figure 10As shown in the figure, the process for setting the silt pressure load distribution for a specific load case combination is as follows: Click the "Silt Pressure" button in the toolbar to display the Silt Pressure dialog box. The user interactively selects the silt pressure range, which consists of two straight lines: the silt line (vertical) and the guide line (width), which must be straight lines. The user then sets the silt buoyancy density and internal friction angle in the corresponding dialog box.

[0134] Specifically, if Figure 11 As shown in the figure, the process for setting the wave pressure load distribution for a specific operating condition combination is as follows: Click the "Wave Pressure" button in the toolbar to display the Wave Pressure dialog box. The user interactively selects the wave pressure range, which consists of two straight lines: the waterline (vertical) and the sill line (cross-flow). The user then sets wind zone parameters and gate front parameters in the corresponding dialog box, and determines the calculated water depth parameter H based on the current operating conditions.

[0135] Specifically, if Figure 12-13 As shown in the figure, the process for setting the surface load distribution for a specific load case combination is as follows: Click the "Point / Surface Load" button in the toolbar to open the Point / Surface Load dialog box. The user interactively selects the surface range of action. The user then sets the corresponding parameters in the corresponding dialog box.

[0136] Backend system functions:

[0137] The load distribution creation module receives the load distribution area and parameters (such as deadweight, water weight, uplift pressure, etc.) selected by the user.

[0138] The system calculates the load distribution model in the background based on the selected area and associates the load distribution with the specified working conditions to ensure the accuracy and completeness of the data.

[0139] The generated load distribution information is saved in the database of the BIM platform, and the load distribution name is displayed in the structure tree hierarchy directory.

[0140] Step 5: Encapsulate 3D features and save to the BIM platform

[0141] No user action is required:

[0142] After the system confirms that the calculation unit, working condition combination and load distribution of the gate station have been set correctly, the feature packaging module will perform three-dimensional feature packaging on all calculation unit parameters, working condition combination parameters and load distribution data.

[0143] The encapsulated feature data is stored in the BIM platform database and linked to the relevant 3D design data to ensure efficient data access and updating. Secondly, it can be visualized and presented in the BIM platform view area.

[0144] Step 6: Calculation and Analysis

[0145] User Action:

[0146] like Figure 14 As shown, the user selects the specified working condition combination in the calculation unit to be calculated in the structure tree hierarchical directory.

[0147] The user double-clicks the gate station calculation unit selected in the hierarchical directory, and the working condition combination dialog box pops up. Click "++" on the right to expand it and trigger the solver to perform calculations.

[0148] Backend system functions:

[0149] After receiving the user-selected operating condition combination data, the solver performs calculations based on the sluice design specifications.

[0150] like Figure 2 As shown in the figure, the solver calculates each load condition in the load condition combination selected under the unit in turn, as well as the load distribution parameters under each load condition, to generate the calculation results.

[0151] Based on the calculated characteristic data, the system calculates the anti-slip, anti-floating, and base stress nonuniformity coefficients and displays the results in the Load Case Combination dialog box. The dialog box also displays the allowable values ​​in the code and compares them with the calculated results.

[0152] The above calculation process and results are saved as three-dimensional feature data and encapsulated in the three-dimensional design model of the gate station to ensure the accuracy and visualization of the data.

[0153] Specifically, the solver first obtains the calculation unit information; traverses the predecessor working condition combination of the currently selected working condition combination and identifies the transferable load; if there is any, it is added to the current working condition; traverses the direct loads under the current working condition and checks the load integrity; calculates the centroid, concentrated force and action arm of all loads (direct loads and transferred loads); solves anti-slip, anti-floating, base stress unevenness coefficient and other indicators according to the specifications.

[0154] Step 7: Output

[0155] User Action:

[0156] like Figure 15 As shown, the user selects a calculation unit in the hierarchical directory and clicks the "Calculation Book" button in the toolbar.

[0157] like Figure 16 As shown, the system pops up the calculation report dialog box, and the user selects the desired file name and sets the output parameters. The user uses the dialog box to select the desktop path for the calculation report output; the built-in format (user-customizable); the output mode is simple or detailed; and whether to preview the output.

[0158] Backend system functions:

[0159] The calculation output module extracts the calculation results of the corresponding calculation unit according to the user's instructions, and checks the calculation unit, working condition combination, and load integrity of the current model to see whether they meet the basic requirements of the specification; if so, it will extract the stability index information of all working condition combinations.

[0160] The system will import the calculation results into the specified output template, generate a complete report or calculation book, and provide it for users to download or print. The calculation book is currently output to the desktop, and the file name can be customized by the user; if the user checks the preview option, the WPS or OFFICE office software will automatically open to preview the calculation book after the calculation book is output. Figure 16 shown.

[0161] Compared with the existing technology, the present invention is more convenient to use, and realizes the integration of three-dimensional design and analysis calculation in a unified collaborative design environment. The calculation results can be directly used to guide and review design plans, improve business continuity, help give full play to the advantages of three-dimensional design, and improve design quality.

[0162] The present invention is more efficient in calculation. It encapsulates many trivial calculation processes in standard calculations into a programmed solver. Users can interactively input relevant calculation parameters and options, and then the solver can provide feedback on the analysis results. Compared with manual calculation methods, the calculation speed is faster and more efficient, and the calculation results are more accurate and reliable.

[0163] The present invention is more powerful and uses the three-dimensional design feature mechanism to encapsulate objects in the analysis and calculation process, such as calculation units, working conditions, loads, etc., to achieve visual interaction, associated updates, and persistent storage, so that the analysis and calculation can achieve knowledge engineering reuse like three-dimensional models, guide designers to carry out design, and significantly improve the friendliness of analysis and calculation.

[0164] The present invention can realize mutual feedback of results. In the past, traditional design could only extract the required parameters from the design plan to the analysis and calculation model in a unidirectional manner. Now, through characterization, the analysis and calculation results are also saved as a feature, so that the three-dimensional design model can also directly reference the results, realizing mutual feedback and interoperability, making calculation-driven design possible.

[0165] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A method for calculating gate station stability based on a BIM platform, characterized by: The following steps are involved: Display the 3D design model data of the gate station to be calculated on the BIM platform; Determining the calculation unit of the gate station to be calculated and its parameters based on the displayed three-dimensional design model data of the gate station to be calculated; Set the working condition combination and its parameters for the calculation unit of the gate station to be calculated; Set the corresponding load distribution for each working condition combination; The gate station calculation unit to be analyzed and its parameters, working condition combination and its parameters and load distribution are encapsulated using three-dimensional features and saved in the BIM platform; The solver calculates the anti-slip, anti-floating and base stress unevenness coefficient indicators under specified working conditions using the 3D feature calculation data saved on the BIM platform, and encapsulates the calculation results and process using 3D features and saves them to the BIM platform; According to external instructions, the three-dimensional features of the gate station to be calculated saved in the BIM platform are called and the specified calculation data is extracted and imported into the set template to output the calculation report.

2. A method according to claim 1, characterized in that: The parameters of the gate station calculation unit include the sluice level, base reference plane, and base parameters; the base parameters include the base reference elevation, base length in the downstream direction, base width in the direction perpendicular to the water flow, foundation type, and its corresponding foundation parameters.

3. A method according to claim 1, characterized in that: The parameters of the working condition combination include: working condition name, working condition stress condition, combination condition and characteristic water level.

4. A method according to claim 1, characterized in that: The load distribution includes: deadweight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, soil frost heave force, seismic load and other loads; each working condition combination corresponds to several of the above load distributions.

5. A method according to claim 2, characterized in that: The process of setting any load distribution for any working condition combination includes: picking corresponding points, lines and / or surfaces as the load distribution selection area through the three-dimensional design model data of the gate station to be calculated displayed in the BIM platform, and writing the parameters corresponding to the load through external instructions.

6. A method according to claim 2, characterized in that: The solver calculates the anti-sliding, anti-floating and base stress unevenness coefficients based on the sluice design specifications; the solver generates a comparison result of the calculated anti-sliding, anti-floating and base stress unevenness coefficients with the corresponding agreed allowable values ​​in the sluice design specifications, and encapsulates it as a three-dimensional feature.

7. A method according to claim 4, characterized in that: There is a temporal sequence between different working condition combinations. Before distributing the load for any working condition combination, the preceding working condition combination of the working condition combination is first traversed to identify whether there is a transferable load. If so, it is used as the transfer load of the working condition combination; the anti-slip, anti-floating and base stress unevenness coefficients are jointly calculated based on the direct load distribution and the transferred load distribution.

8. A gate station stability calculation system based on a BIM platform, characterized by: The system is used to implement the gate station stability calculation method based on the BIM platform as described in any one of claims 1 to 7, comprising: The BIM platform is used to display the 3D design model data of the gate station to be calculated, and provides the operation interface of each functional module and a hierarchical directory of the model structure tree. The hierarchical directory of the model structure tree is used to display the name of the created calculation unit, the name of the working condition combination, and the name of the load; Analysis and calculation modules, including: A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions and set the calculation unit parameters; associate the parameters with the selected gate station calculation unit and save them to the BIM platform; the created gate station calculation unit node is displayed as a first-level object in the structure tree hierarchical directory; The working condition combination creation module is used to select a gate station calculation unit node in the structure tree hierarchical directory based on external instructions, locate the specific gate station calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected gate station calculation unit and save it, and add the working condition combination node to the next level of the calculation unit node in the structure tree hierarchical directory; The load distribution creation module is used to select a load case combination node in the structure tree hierarchy based on external instructions, locate a specific calculation load case combination, and set direct load distribution parameters; the direct load distribution parameters are associated with the selected load case combination and saved, and the load distribution node is added to the next level of the load case combination node in the structure tree hierarchy; The feature encapsulation module is used to encapsulate the gate station calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load distribution parameters generated by the load distribution creation module into three-dimensional features, and save them to the BIM platform for persistent storage and graphical distribution display; The calculation output module is used to select the gate station calculation unit name or working condition combination name in the hierarchical directory based on instructions, locate the specific data object, extract the saved data, import it into the set template, and then output the calculation report; The solver module is used to select the gate station calculation unit and its specified working condition combination in the hierarchical catalog based on instructions, calculate the anti-slip, anti-floating and base stress unevenness coefficient indicators, and encapsulate the calculation results as 3D feature data and save them to the BIM platform; The structure of the BIM platform tree hierarchy directory structure includes: First level: calculation unit name; Second level: working condition combination name; Level 3: Load distribution name.

9. A system according to claim 8, characterized in that: The load distribution creation module includes self-weight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, soil frost heave force, earthquake load and other load setting modules; The BIM platform displays the start buttons of all load calculation modules and lights up the start button of the load setting module corresponding to the specified working condition combination under the gate station calculation unit to be calculated, to prompt that the start instruction of the load setting module can be received.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the gate station stability calculation method based on the BIM platform described in any one of claims 1 to 7 is implemented.

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